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| author | caiyinyu <caiyinyu@loongson.cn> | 2023-02-28 16:21:41 +0800 |
|---|---|---|
| committer | caiyinyu <caiyinyu@loongson.cn> | 2023-03-07 21:42:25 +0800 |
| commit | 4c721f24fc190d1dc935eb0bab283de7cf13182e (patch) | |
| tree | af08773b43e547d8e518a1967a5bf4dd10d04e37 /dlfcn | |
| parent | 436a604b7dc741fc76b5a6704c6cd8bb178518e7 (diff) | |
| download | glibc-4c721f24fc190d1dc935eb0bab283de7cf13182e.tar.gz glibc-4c721f24fc190d1dc935eb0bab283de7cf13182e.tar.xz glibc-4c721f24fc190d1dc935eb0bab283de7cf13182e.zip | |
x86: Fix bug about glibc.cpu.hwcaps.
Recorded in [BZ #30183]:
1. export GLIBC_TUNABLES=glibc.cpu.hwcaps=-AVX512
2. Add _dl_printf("p -- %s\n", p); just before switch(nl) in
sysdeps/x86/cpu-tunables.c
3. compiled and run ./testrun.sh /usr/bin/ls
you will get:
p -- -AVX512
p -- LC_ADDRESS=en_US.UTF-8
p -- LC_NUMERIC=C
...
The function, TUNABLE_CALLBACK (set_hwcaps)
(tunable_val_t *valp), checks far more than it should and it
should stop at end of "-AVX512".
Diffstat (limited to 'dlfcn')
0 files changed, 0 insertions, 0 deletions